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seropon [69]
3 years ago
7

What electromagnetic radiations can the human bodies senses detect??

Physics
1 answer:
BlackZzzverrR [31]3 years ago
4 0

Answer:

Human senses include the ability to detect electromagnetic waves in the 3800-7600 angstrom range, air waves of 15 to 20,000 beats per second, air-borne and liquid-borne molecules of proper size, quantity and configuration, and to generate nerve impulses triggered by objects impinging on body surfaces with enough force

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A 40 kg boy on a skateboard throws a 2 kg ball at 20 m/s to the left. How fast did the boy move to the right on his skateboard?
sergey [27]
According to my examination I have confirmed that I do NOT repeat do NOT know this .
4 0
3 years ago
How many planets are in our solar system? and how many moons are there in total?
Step2247 [10]

There are NINE planets in our solar system: Mars, Venus, Jupiter, Saturn, Uranus, Neptune, Earth, Mercury, Pluto.

As of this year, there are 350 moons in our solar system, 175 of which orbit about our planets.

I hope this helps!

5 0
3 years ago
Read 2 more answers
Convert 9.2 km to m​
Nataly_w [17]

Answer:

9,200 m

Explanation:

1 kilometer = 1000 meters so if there is 9 kilometers then it is 9000 meters, then .2 kilometer is equal to 200 meters. Add the numbers together to get 9,200 meters

5 0
4 years ago
A penny is dropped from the Statue of Liberty
Brrunno [24]

Answer:

a) The velocity is 2.94m/s

b) 0.441

Explanation:

a) Assume gravity is 9.8m/s^2

Use the equation below to solve for the velocity at 0.30 seconds

vf=vi+at,

vf =unknown velocity  vi= initial velocity vi=0m/s  a= 9.8m/s^2 t=0.30seconds

Step 1: Substitute the variables with the knowns

vf=0m/s+(9.8m/s^2)*0.30seconds

Step 2: Solve

vf=2.94m/s

b)

Use the equation below to solve for the displacement at 0.30 seconds

x=vit+\frac{1}{2} at^{2}

Step 1: Substitute the same variables with the knowns

x=\frac{1}{2}*(9.8m/s^2)*(0.30seconds)^{2}

Note that vi*t=0 as vi=0m/s

Step 2: Solve

x=0.441m

5 0
3 years ago
When the point of reference (the observer) is in motion, it flips the "rules" of vector addition (you ADD the vectors going in o
earnstyle [38]

Answer:

True

Explanation:

4 0
3 years ago
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